The New Frontier of Google Ranking: Are You Ready for INP?
If you run a business in Sydney, you already know that digital real estate is highly competitive. Whether you are a boutique retail store in Paddington, a bustling trade service in Parramatta, or an e-commerce brand shipping nationwide, getting customers to your website is only half the battle. Once they arrive, your site needs to perform flawlessly.
In March 2024, Google officially replaced the old First Input Delay (FID) metric with a brand-new Core Web Vital: Interaction to Next Paint (INP). This change represents a major shift in how Google measures page experience and user satisfaction. If your WordPress website feels sluggish or unresponsive when users click buttons, open menus, or interact with forms, your Google rankings could soon take a hit.
At WP Pro, we specialize in building lightning-fast WordPress websites that rank. In this comprehensive guide, we will break down exactly what INP is, why it matters for your Sydney-based business, and how you can optimize your website to stay ahead of the competition.
What is Interaction to Next Paint (INP)?
Simply put, INP measures your website’s responsiveness. It tracks how long it takes for the browser to present the next frame (or visual update) after a user performs an interaction, such as clicking a link, tapping a mobile menu, or typing in a contact form.
While the previous metric (FID) only measured the delay of the very first interaction on a page, INP looks at the big picture. It monitors all interactions throughout the user’s entire visit and reports the worst delay. Google categorises INP scores into three simple brackets:
- Good: Under 200 milliseconds (the page feels instantaneous).
- Needs Improvement: Between 200 and 500 milliseconds.
- Poor: Over 500 milliseconds (users notice a frustrating lag).
If your website takes more than half a second to respond when someone clicks “Add to Cart” or tries to toggle an FAQ accordion, Google will flag your site as slow, potentially dragging down your SEO visibility.
Why INP is a Game-Changer for Sydney Small and Medium Businesses
In the fast-paced Sydney market, consumer patience is at an all-time low. Whether your target audience is browsing on mobile devices while commuting on the Sydney Trains network or looking for local services on their lunch break, speed is directly tied to your bottom line. Here is why optimizing for INP is crucial:
1. Better SEO Performance and Organic Visibility
Google uses Core Web Vitals as a direct ranking signal. While great content is still king, technical performance acts as the tie-breaker. If you and your main competitor are targeting the same high-value Sydney keywords, but your competitor’s site boasts a “Good” INP score while yours “Needs Improvement,” Google is highly likely to rank their site above yours.
2. Improved Conversion Rates
A responsive website builds trust. When a user clicks a button and nothing happens for half a second, they often click it again, or worse, assume the site is broken and bounce back to the search results. By optimizing your INP, you ensure that every micro-interaction feels snappy, which keeps users engaged and moving smoothly through your sales funnel.
3. Superior Mobile Experience
In Australia, over 55% of web traffic comes from mobile devices. Mobile phones generally have weaker processors than desktop computers, meaning they take longer to execute complex JavaScript code. A site that feels fast on a modern Mac or PC might lag terribly on a mid-range smartphone. INP is designed to highlight these mobile-specific pain points.
How to Measure Your WordPress Website’s INP
Before you can fix your INP, you need to know where you stand. Here are the best tools to diagnose your site’s responsiveness:
- Google PageSpeed Insights: Enter your URL to see your real-world Chrome User Experience Report (CrUX) data. Look for the “Interaction to Next Paint” metric under both mobile and desktop tabs.
- Google Search Console: Navigate to the “Core Web Vitals” tab in your dashboard. Google will flag any URLs that fail to meet the 200ms INP threshold.
- Chrome DevTools: For a deeper dive, your developer can use the Performance panel in Chrome to record user interactions and pinpoint exactly which scripts are blocking the main thread.
4 Actionable Ways to Improve INP on WordPress
Because WordPress is highly modular, it is easy to accidentally bloat your website with heavy plugins and page builders that degrade your INP score. Here is how you can optimize your WordPress site for maximum responsiveness:
1. Defer and Delay Unnecessary JavaScript
JavaScript is almost always the culprit behind a poor INP score. When a user clicks an element, the browser has to pause what it is doing, run the JavaScript associated with that click, and then render the visual change. You can use optimization plugins like WP Rocket or FlyingPress to defer non-essential JavaScript or delay it until user interaction. This frees up the browser’s main thread to handle user inputs immediately.
2. Streamline Your DOM Size
The Document Object Model (DOM) is the structural tree of your HTML page. Heavy page builders like Elementor or Divi often generate deep, nested HTML structures. A massive DOM means the browser has to work harder to recalculate layouts and repaint the screen after an interaction. Keep your page layouts clean, avoid excessive nesting, and consider switching to block-based themes (like Gutenberg) for a cleaner codebase.
3. Identify and Replace Heavy Plugins
Not all WordPress plugins are built equal. Some add massive, unoptimized scripts to your site’s front end, even on pages where they aren’t being used. Audit your active plugins. If you have complex interactive features like live chat, mega menus, or advanced search filters, ensure they are lightweight or lazy-loaded so they do not block user input.
4. Upgrade to High-Performance Local Hosting
If your website is hosted on a cheap, overcrowded server located overseas, your server response times will naturally suffer. Choosing a premium hosting provider with local Sydney servers (such as WP Pro’s optimized hosting environment) ensures that database queries and server-side operations are executed in milliseconds, providing a solid foundation for optimal INP.
Let WP Pro Supercharge Your WordPress Performance
Optimizing your website’s code to pass Google’s strict new INP requirements can be highly technical and time-consuming. That is where we come in.
At WP Pro, we are passionate about helping Sydney businesses dominate the digital landscape. Our team of expert WordPress developers and SEO specialists can audit your site, resolve complex JavaScript bottlenecks, streamline your codebase, and implement advanced caching solutions to ensure your site passes Google’s Core Web Vitals with flying colours.
Don’t let a sluggish website hold your business back. Contact WP Pro today for a comprehensive website performance audit, and let’s get your WordPress site running faster than ever!


